Triassic land and marine life, artwork. A scene during the Late Triassic, Norian, approx. 228-209 million years ago. Three Dicynodonts (mammal-like reptiles) are grazing on the shore at the left. Some ammonites are swimming amongst the crinoids (Encrinus liliiformis). From left to right are loosely coiled Choristoceras (heteromorph). Centre and left are Ceratites. Crawling on crinoid stems and on the seafloor are some cone-shaped Cochloceras (heteromorph). Swimming vertically on the left are some Rhabdoceras (heteromorph). In the background is an early type of plesiosaur (Alexeyisaurus).